"Jonathan Roberts" wrote in message
...
.-- wasn't the main reason for introducing 48 k
recording to screw up copying of CDs in the first place?

Not at all!

48kHz. was the lowest sample rate that could be easily syncronized with all
flavors of video and film and didn't arguably compromise sound quality. The
state of the art was 50kHz. at the time with the compact disk rate being
viewed as strictly good enough for music distribution but not for
production. The first digital video recorders used 48kHz. x 20 bits.
--
Bob Olhsson Audio Mastery, Nashville TN
Mastering, Audio for Picture, Mix Evaluation and Quality Control
Over 40 years making people sound better than they ever imagined!
615.385.8051 http://www.hyperback.com